Engineering, 12.11.2020 03:30 rhettperkins

PLEASE HELP NASA scientists have determined that the chance a single person would get hit by a piece of falling satellite is one in 3,200. What can you infer based on this probability?

A. Satellites that enter Earth’s atmosphere land mostly in the ocean.

B. NASA does a good job informing people of when satellites will enter the atmosphere.

C. Satellites that enter Earth’s atmosphere land mostly in unpopulated areas.

D. Much of a satellite is destroyed during the process of entering Earth’s atmosphere.

Answers: 2

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Answers: 3

Answer

Engineering, 04.07.2019 18:20

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor

Answers: 3

Answer

Engineering, 04.07.2019 19:10

The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]

Answers: 3

Answer

Engineering, 06.07.2019 02:30

On solidification from a melt, the polymer polyethylene forms a semi-crystalline spherulite structure. (i) sketch an individual spherulite and label the amorphous and crystalline regions. (ii) draw a schematic to show the changes in specific volume with temperature during cooling from the melt, comparing it to the theoretical extremes of fully crystalline and fully amorphous (indicate tm and tg)

Answers: 2

Answer

You know the right answer?

PLEASE HELP NASA scientists have determined that the chance a single person would get hit by a piec...

Questions